Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trang » thanh trung, hanh trinh, minh trang
lang cong » dang cong, bang cong, hang cong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
va lang » va nang, hoa lang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu xanh - ((hanh trang) OR (canh tranh)) va lang cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu xanh - ((hanh trang) OR (canh tranh)) va lang cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - ((hanh trang) OR (canh tranh)) va lang cong tac toan cau*.